package com.ccjq.jq167.service;

import com.ccjq.jq167.po.StudentPo;

import java.util.List;

public interface Service_Interface {
    //查询信息
    List<StudentPo> select_students();
    //添加信息
    int insert_students(StudentPo po);
    //删除信息
    int delete_students(String id);
    //修改信息
    int update_students(String name,String age,String sex,String address,String school,String id);
}
